China’s official Xinhua News Agency reported late on Saturday that a Chinese ship that is part of the search effort detected a “pulse signal” at 37.5 kilohertz (cycles per second) – the same frequency emitted by flight data recorders – in southern Indian Ocean waters.

The crew of a Chinese plane spotted the objects some 27 thousand kilometers off the coast of Perth. The findings have been reported to Australia. On Saturday, up to 10 military planes, three civil jets and 11 ships were mobilized to search an area of about 217-thousand square kilometers.

John McGraw on Possible Black Box Pings

John McGraw on Possible Black Box Pings

John McGraw, an aerospace consultant and former deputy director of the U-S Federal Aviation Administration discusses the pulse signal and what that means about the plane's location.

Search Efforts Continue in Perth Australia

There is still no confirmation that those pings detected are, in fact, from Flight 370. But hopes are rising because the pulse that searchers heard matches the frequency of what would be coming from the black box. Crews aboard a Chinese vessel detected the signal—a considerable distance away from the designated search zone. Just a short time later, China reported spotting debris in the water. But it's not yet clear what that is, either. CCTV's Tony Cheng has the latest on these developments from the search headquarters in Perth, Australia.